In the Orbiter Processing Facility at NASA's Kennedy Space Center, STS-125 Commander Scott Altman looks at a piece of equipment. On either side are Mission Specialists Mike Massimino (left) and Andrew Feustel. Crew members are at Kennedy for a crew equipment interface test, which provides hands-on experience with hardware and equipment for their mission. Atlantis is targeted to launch on the STS-125 Hubble Servicing Mission 4 on Oct. 8. Photo credit: NASA/Kim Shiflett